%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-8-2 on page II-573 in "chapterbib --- Bibliographies per included file".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exareport}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{330.59894pt}

\setcounter{page}{4} % thus page 6 will contain biblio
% Small headings for the example
\makeatletter
\renewcommand\@makeschapterhead[1]{%
    {\setlength\parindent{0pt}%
     \Large \bfseries #1\par}%
    \nobreak
    \vspace{7pt}}
\renewcommand\section{\@startsection{section}{1}{\z@}%
  {-1.25ex \@plus-1ex \@minus-.2ex}%
  {.8ex}%
  {\normalsize\bfseries}}
\makeatother


% We force rewriting these files, because other examples use
% the same name:

\begin{filecontents}[force]{article-1.tex}
 \stepcounter{chapter}
 \ldots\ see \cite{Knuth-CT-a} \ldots
 \bibliographystyle{alpha}
 \bibliography{tlc}
\end{filecontents}
\begin{filecontents}[force]{article-2.tex}
 \stepcounter{chapter}
 \ldots see \cite{Knuth-CT-a}
  and \cite{bschur} \ldots
 \bibliographystyle{plain}
 \bibliography{tlc}
\end{filecontents}

%% Do not process top-level aux file with BibTeX
%% Process article-1 and article-2 with BibTeX

%% show third page in book

\usepackage [gather,sectionbib]{chapterbib}
\newcommand\FinalBibTitles{References for Article~\thechapter
                                       ~\mbox{---}~\chaptitle}

%StartShownPreambleCommands

%StopShownPreambleCommands

\begin{document}
\newcommand\chaptitle{Intro}      \include{article-1}
\renewcommand\chaptitle{Summary}  \include{article-2}  \bibliography{}
\end{document}
